You mean like the words "Harry Potter looking up" and it's a link?
Thumbnails are easy for me. Really! I have Adobe Photoshop, courtesy of my wonderful employers.
I was only kidding you about being picky! You're the artist! It should be as you want it. I just want to be sure the other artists are cool with it, because I'm... I confess (wince)... a consistency nut. But I still have all the original images (I'm also a packrat), and I can do a "save for the Web" which makes the files smaller without hurting the quality, so keeping them on my server is no problem.